Wrench.



No. 838,173. PATENTED DEC. 11, 1906.

W. H. DENNISON.

' WRENCH.

APPLICATION FILED APR.12, 1906..

Fi .1 51 a WITNESSES: INVENTOR Altar/1e 8 WVILLIAM H. DENNISON, OF ALASKA, WEST VIRGINIA.

WRENCH.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application filed April 12, 1905. Serial No. 255,207.

To (I/ZZ whom it may concern:

Be it known that 1, WILLIAM H. DENNI- SON, a citizen of the United States, residing at Alaska, in the county of Mineral, State of est Virginia, have invented certain new and useful Improvements in l/Vrenches; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to tools, and more particularly to wrenches, and has for its object to provide a wrench of the sliding-jaw type in which the sliding jaw may be adjusted to different points of its movement in a quick and simple manner.

Another and principal object is to provide a wrench which may be manufactured at a low figure, which will be so arranged that the parts thereof will not be likely to become clogged with grease or other foreign matter, and in which the several portions will be so arranged that they may be easily and quickly removed when repairs or replacements are necessary.

Other objects and advantages will be apparent from the following description, and it will be understood that changes in the speciiic construction shown and described may be made within the scope of the claim and that any suitable materials may be used without departing from the spirit of the invention.

In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in both views, Figure 1 is a side elevation of the present wrench. Fig. 2 is a longitudinal section of Fig. 1.

Referring now to the drawings, the present invention comprises a stock 5, the forward face 6 of which is provided with transverse serrations 7. A transversely-extending stationary head 8 is carried by the stock, at one end thereof, while the other end carries a handle 9. The wrench also includes a movable portion 10, including a member 11, disposed with its inner face 12 against the forward face 6 of the stock and having a longitudinal recess 13 formed in its inner face and opening through the lower end of the memher. The upper end of the member 11 is extended forwardly to form a jaw 14, arranged for cooperation with the jaw 8, and engaged with the stock there is a yoke 15, which rests with the ends of its spaced portions against the inner face 12 of the member 11, the yoke being secured to the member by screws 16, engaged in the yoke and in the member' It will be apparent that the screws may be removed to permit of disengagement of the member and yoke from the stock.

A transversely-extending pivot-pin 19 is engaged in the member 11, adjacent to the lower end thereof, and extends across the recess 13, and pivoted'upon this pin there is a latch 17, which extends longitudinally within the recess 13 and projects beyond the open lower end thereof.

The latch 17 is movable upon its pivot to bring its lower end portion 18 into and out of engagement with the forward face of the stock 5, and the latch is provided with serrations 19, arranged for engagement with serrations 6 to hold the movable portion of the wrench at different points of its movement upon the stock. A supplemental recess 20 is formed in the inner face 12 of the member 11 above the recess 13 and communicates with the latter, and secured at one end in this recess 20 there is a strap-spring 21, which bears at its other end against the upper portion of the latch 17 to hold this latch with its lower portion in engagement with the stock.

At its upper end the latch 17 is bifurcated, as shown at 22, and pivoted in this bifurcation is the rearward end of a plunger 23, which extends forwardly through a passage 24, formed in the member 11, and lies normally with its free end projected beyond the forward face of the member. As will be seen, the forward end of the plunger 23 may be pressed to move the plunger inwardly, which will move the latch against the action of the sprin 21, thus releasing the movable portion 10 of the wrench to permit of its free movement upon the stock.

It will thus be observed that a wrench is provided which may be manufactured at a low figure and which, all of the working parts being inclosed, with the exception of a portion of a plunger 23 and the lower end-0f the latch, is so arranged that clogging of these parts with grease, &c., is prevented.

Vhen it is desired to remove the movable portion 10 of the wrench for any purpose, it is only necessary to remove the screws 16.

ing a recess therewithin opening through its What is claimed is In a Wrench, the combination with a stock having a jaw at oneend and having a transversely-serrated forward face, of a member disposed with its inner face against the forward face of the stock and having a jaw at its upper portion for cooperation with the jaw of the stock, the inner face of said member extending laterally beyond the stock, a yoke engaged around the rearward portion of the stock and resting against the inner face of the member at the sides of the stock, attaching devices removably engaged in the yoke and in the member, said member .hav-

inner face and through its lower end, a latch pivoted in the recess and extending down wardly beyond the lower end of the member, said latch having serrations for engagement of those of the stock, a spring arranged to hold the latch in engagement with the stock, and a finger-piece pivoted to the latch and extending outwardly through the member, said finger-piece being movable to move the latch against the action of the spring.

In testimony whereof I afIiX my signature in presence of two witnesses.

WILLIAM H. DENNISON.

Witnesses W. T. KINK, N. B. GUTHRIE. 

